This large 10.5" Spider Search Coil with 7 foot cable was made for use with Fisher 1225-X, 1236-X2, and 1270X series of metal detectors.
In general, larger searchcoils will give better depth with larger targets and better ground coverage. However, sensitivity to smaller objects may be sacrificed. Smaller search coils will offer greater sensitivity to smaller objects and improved target separation in trashy soil. All Fisher search coils are electrostatically shielded and waterproof, plus all Fisher accessories purchased separately (including coils) carry a 90 day warranty
from the factory.